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<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Programmer Notes</dl></b></td>
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<p align=center><b>Compatibility with historic UNIX interfaces</b></p>
<p>The Berkeley DB version 2 library provides backward-compatible interfaces for
the historic UNIX <a href="../../api_c/dbm.html">dbm</a>, <a href="../../api_c/dbm.html">ndbm</a>, and <a href="../../api_c/hsearch.html">hsearch</a>
interfaces.  It also provides a backward-compatible interface for the
historic Berkeley DB 1.85 release.</p>
<p>Berkeley DB version 2 does not provide database compatibility for any of the
previous interfaces, and existing databases must be converted manually.
To convert existing databases from the Berkeley DB 1.85 format to the Berkeley DB
version 2 format, review the <a href="../../utility/db_dump.html">db_dump185</a> and <a href="../../utility/db_load.html">db_load</a>
information.  No utilities are provided to convert UNIX <a href="../../api_c/dbm.html">dbm</a>,
<a href="../../api_c/dbm.html">ndbm</a>, or <a href="../../api_c/hsearch.html">hsearch</a> databases.</p>
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